Other than bumping up your cpu to the 1055T, it looks like a good setup. I think the psu is pretty good. As sugar says, use shopbot and pricematch. You could opt for a Corsair 650 watt TX, but I like modular much better. Less cables, less clutter!

I recommend that you switch the CPU to a 1055T if possible, grab an 890FX board instead of a 790FX one, get a 768MB GTX 460 instead of the 5770, and drop down to a PSU with around 500W of power instead.